TSAG Faraday crystal is an ideal magneto-optical crystal, which is mainly used in the wavelength range of 400-1600 nanometers, namely the visible and infrared bands. TSAG is an indispensable crystal for the next generation of high-power lasers due to its advantages of high constant, good thermal and mechanical properties. Compared with TGG, the Verdet constant at 1064 nm of TSAG is 20 % higher and the absorption is 30 % lower. Recently, the optical and scintillation properties of TSAG (Tb3Sc2Al3O12) crystal was investigated, and capabilities to be used as a scintillator screen was demonstrated.
|Transmittance Range(bulk/uncoated)||400-1600 nm|
|Crystal Structure||Cubic，Space group Ia3d|
|Lattice Parameter||a=12.3 Å|
|Extinction Ratio||＞30 dB|
|Diameter Tolerance||+0.00 mm/-0.05 mm|
|Length Tolerance||+0.2 mm/-0.2 mm|
|Chamfer||0.1 mm @ 45°|
|Flatness||＜λ/10 at 633 nm|
|AR coating||＜0.3% @ 1064 nm|
- Large Verdet constant（48 radT-1m-1 at 1064 nm），about 20% higher than that of TGG;
- Low absorption（＜3000 ppm/cm at 1064 nm），about 30% less than that of TGG;
- High power compliant;
- Low thermally-induced birefringence;
- Making the isolator small.